Chaptwr 3 Flashcards

1
Q

Physiology is the study of the ____&____ performed by the body structures, including physical and chemical processes

A

Functions / activities

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2
Q

3 layers of the skin

A

Epidermis
Dermis
Subcutaneous

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3
Q

Aka integumentary system/ largest organ in the body.

A

Skin

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4
Q

Appendages of the skin include

A

Hair/nails/sweat/glands/and oil glands

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5
Q

Are the most abundant in the finger tips and are designed to be one of the most sensitive parts of the body

A

Sensory nerve fibers

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6
Q

The skin is a thin, yet strong,___ Barrier to the outside elements and microorganisms

A

Protective

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7
Q

Is the protective barrier made up of sebum, lipids, sweat, and water

A

Acid mantle

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8
Q

The acid mantle has an average pH of

A

5.5

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9
Q

Is the skin’s mechanism that protects us from irritation and intercellular transepidermal water loss

A

Barrier function

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10
Q

The water loss caused by evaporation of the skin’s surface

A

Transepidermal water loss

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11
Q

Is the cement mortar between the bricks that holds everything together

A

Intercellular matrix

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12
Q

The body’s average internal thermostat is set at

A

98.6 Fahrenheit

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13
Q

Aka sweat glands/ excrete perspiration

A

Sudriferous glands

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14
Q

It’s an oily substance that protects the surface of the skin and lubricates both the skin and the hair

A

Sebum

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15
Q

Aka oil glands/ are appendages attached to follicles that produce sebum

A

Sebaceous glands

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16
Q

Is 25 times more thicker than the epidermis/ consist of 2 layers: reticular layer below and the papillary layer above.

A

Dermis

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17
Q

Damage to elastin fibers as they break down is the primary cause of ______,____,______ loss of elasticity in the skin

A

Sagging/ wrinkles/ intrinsic aging

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18
Q

Are cause by damaged elastin fibers

A

Stretch marks

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19
Q

Some states define the esthetician’s scope of practice as “not beyond the the DEJ” meaning the esthetician cannot

A

Treat the skin beyond the epidermis

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20
Q

The epidermis is composed of the five layers called strata:

A

Stratum germinativum/ spinosum/granulosum/lucidum/corneum

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21
Q

The germination or growth layer/ bottom layer

A

Stratum germinativum

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22
Q

The spiny cells

A

Stratum spinosum

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23
Q

The grainy cells

A

Stratum granulosum

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24
Q

The clear cells/ present only where the skin is thick; on the soles of the feet and palms of the hands

A

Stratum lucidum

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25
The horny cells
Stratum corneum
26
Composed of keratin, comprise 95% of the epidermis
Keratinocytes
27
Stem cells undergo continuous _____ (mitosis) to replenish the skin cells that are regularly shed from the surface
Cell division
28
Is where everything starts or germinates. Basal means the fundamental or basic layer
Stratum germinativum
29
Are cells that produce pigment granules in the nasal layer
Melanocytes
30
Al granular layer/ composed of cells that resemble granules and are filled with keratin
Stratum granulosum
31
Stratum lucidum
Thin clear layer of dead skin cells under the stratum corneum
32
This layer is thickest on the ___ of the hands and the __ of the feet
Palms and soles
33
Keratinocytes are continually shed from the skin in a process called
Desquamation
34
The average adult cell turn over is every ___ depending on the persons lifestyle, age and health
28 days
35
The keratinocytes on the surface of the skin are also called
Squamous (flat scaly) keratinized cells
36
Differences in genetic skin color are due to the amount of ____ activated in the skin
Melanin
37
Products that suppress melanin production by interrupting biochemical processes are referred to as__/ some are called
Brightening agents / tyrosine’s inhibitors
38
Abnormalities such as extremely curly hair or rapidly growing bacteria and the inability of the follicle to take in ____/ along with excessive ___ production, can contribute to ___ hairs and folliculitis.
Oxygen, sebum, ingrown
39
Technical term for the nail
Onyx
40
Fingernails grow faster than ___ over the summer. Lengthen about 1/10 inch to 1/8 in per month.
Toenails
41
Takes a fingernail about __ to fully grow out
4-6 months
42
Are cordlike bundles of fiber made. Up of neurons through which sensory stimuli and motor impulses
Nerves
43
Nerve fibers stimulate muscles. Regulate excretion from the sweat glands and control sebum
Motor or efferent nerve fibers
44
Secrete oil
Sebaceous glands
45
Excrete sweat
Sudoriferous glands
46
Are large on the face and scalp than the rest of the body
Sebaceous glands
47
Are hormones that trigger biological reactions or communicate signals to others.
Pheromones
48
Excess fluid loss can result in the loss of
Electrolytes
49
Their secretions are released through the oil glands
Apocrine glands
50
In order to survive, cells need important elements;
Nourishment, protection,ability to function through respiration, circulations, elimination of wastes, continuous replacement of proliferation
51
Is a type of lymphocyte
T cell
52
T cells attack the virus infected _/ get their name from their the ___
Cells/ thymus glands
53
Removes and depleted lipids
Exfoliation
54
Ahas, alpha lipoeic acid, and other growth factors stimulate
Skin cell turn overs
55
The ____&&&_____ have the greatest impact on how our skin ages
Sun and UV electromagnetic radiation
56
% of our aging is caused by sun exposure
80-85
57
Aka burning rays/ tanning aging and cancer
UVB radiation
58
Vital to neutralize the chain reaction. Proteins enzymes vitamins and metabolites are all
Antioxidants
59
Aging process involves damages structures and tissues that gradually accumulate thru the body during a process called
Glycation
60
As ___ is depleted skin begins to lose its tone
Estrogen
61
Often suggested to balance estrogen for women experiencing menopause/ may be linked to breast cancer
Hormone replacement therapy